Ground glass tapered joint to mason jar adaptor



FIG. 1 is a top perspective view of a ground glass tapered joint to mason jar adaptor showing my new design.

FIG. 2 is a top plan view thereof.

FIG. 3 is a right side elevation view thereof, which is the same as the left side elevation view thereof.

FIG. 4 is a front elevation view thereof, which is the same as the rear elevation view thereof.

FIG. 5 is a bottom plan view thereof; and,

FIG. 6 is a top perspective view of my design in use.

The features shown in broken lines depict environmental structure only and form no part of the claimed design. 

CLAIM We claim the ornamental design for a ground glass tapered joint to mason jar adaptor, as shown and described. 